70103031 has 4 divisors (see below), whose sum is σ = 93470712. Its totient is φ = 46735352.

The previous prime is 70103021. The next prime is 70103051. The reversal of 70103031 is 13030107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70103031 - 2⁵ = 70102999 is a prime.

It is a super-2 number, since 2×70103031² = 9828869910773922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70103031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70103021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11683836 + ... + 11683841.

It is an arithmetic number, because the mean of its divisors is an integer number (23367678).

Almost surely, 2^70103031 is an apocalyptic number.

70103031 is a deficient number, since it is larger than the sum of its proper divisors (23367681).

70103031 is a wasteful number, since it uses less digits than its factorization.

70103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23367680.

The product of its (nonzero) digits is 63, while the sum is 15.

The square root of 70103031 is about 8372.7552812679. The cubic root of 70103031 is about 412.3306309271.

Adding to 70103031 its reverse (13030107), we get a palindrome (83133138).

The spelling of 70103031 in words is "seventy million, one hundred three thousand, thirty-one".